<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        html{
            width: 100%;
            height: 100%;
        }
        body{
            width: 100%;
            height: 100%;
        }
        .zsx{
            width: 10vw;
            height: 10vw;
            background-color: red;
        }
        .khs{
            width: 10%;
            height: 10%;
            background-color: blue;
        }
    </style>
</head>
<body>
    <div class="zsx"></div>
    <div class="khs"></div>
</body>
</html>